ScriptBuilder.java 文件源码

protected static ScriptEngineFactory lookupScriptEngineFactory(String language) {
    ScriptEngineManager manager = new ScriptEngineManager();
    for (ScriptEngineFactory factory : manager.getEngineFactories()) {
        // some script names has alias
        String[] names = getScriptNames(language);
        for (String name : names) {
            if (factory.getLanguageName().equals(name)) {
                return factory;
            }
        }
    }

    // fallback to get engine by name
    ScriptEngine engine = createScriptEngine(language, true);
    if (engine != null) {
        return engine.getFactory();
    }
    return null;
}